•   CSS 中文开发手册

    :nth-last-of-type (Selectors) - CSS 中文开发手册

    该:nth-last-of-type(an+b)CSS伪类匹配的是在它之后有an+b-1个同类型同胞元素的元素，其中n的是正数或零。它本质上与:nth-of-type是一样的，除了它从后向前计数项目，而不是从前往后。

    /* Selects every fourth <div> inside a parent element */
/* Counting backwards from the last one */
div:nth-last-of-type(4n) {
  background-color: lime;
}

    请参阅有关:nth-child的文档寻求更全面的描述。

    语法

    :nth-last-of-type( <nth> )where 
<nth> = <an-plus-b> | even | odd

    实例

    HTML

    <div>
  <span>This is a span.</span>
  <span>This is another span.</span>
  <em>This is emphasized.</em>
  <span>Wow, this span gets limed!!!</span>
  <strike>This is struck through.</strike>
  <span>Here is one last span.</span>
</div>

    CSS

    span:nth-last-of-type(2) {
  background-color: lime;
}

    结果

    规范

    Specification

    Status

    Comment

    Selectors Level 4The definition of ':nth-last-of-type' in that specification.

    Working Draft

    Matching elements are not required to have a parent.

    Selectors Level 3The definition of ':nth-last-of-type' in that specification.

    Recommendation

    Initial definition.

    浏览器兼容性

    Feature

    Chrome

    Edge

    Firefox (Gecko)

    Internet Explorer

    Opera

    Safari

    Basic support

    4.0

    (Yes)

    3.5 (1.9.1)

    9.0

    9.5

    3.2

    Feature

    Android

    Edge

    Firefox Mobile (Gecko)

    IE Mobile

    Opera Mobile

    Safari Mobile

    Basic support

    2.1

    (Yes)

    1.0 (1.9.1)

    9.0

    10.0

    3.2

    		 
     
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